Hany Tawfik . Return predictability conditional on the characteristics of information signals/ Hany Tawfik . - [N.P]: [Wexford university]: 2001. - 101 p : ill ; 29 cm. Thesis (Ph.D ) -- Wexford university, 2001. includes bibliogrphic referance (97-101). All age. Dewey Class. No.: 657.02 / H R